61613047 has 2 divisors, whose sum is σ = 61613048. Its totient is φ = 61613046.

The previous prime is 61613039. The next prime is 61613063. The reversal of 61613047 is 74031616.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61613047 - 2³ = 61613039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61613017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30806523 + 30806524.

It is an arithmetic number, because the mean of its divisors is an integer number (30806524).

Almost surely, 2^61613047 is an apocalyptic number.

61613047 is a deficient number, since it is larger than the sum of its proper divisors (1).

61613047 is an equidigital number, since it uses as much as digits as its factorization.

61613047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 61613047 is about 7849.3978749965. The cubic root of 61613047 is about 394.9640452238.

The spelling of 61613047 in words is "sixty-one million, six hundred thirteen thousand, forty-seven".